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Exploring the Role of Phytochemical Additives in Enhancing the Properties of Gelatin-Chitosan Films: A Review
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This review examines how phytochemical additives enhance the mechanical, antimicrobial, and antioxidant properties of gelatin-chitosan biodegradable films for food packaging. The study explores the potential of plant-derived bioactive compounds to improve film performance and help reduce reliance on plastic packaging.
The extensive use of plastic packaging has significantly contribute to the plastic pollution. To address this issue, there is an increasing demand for eco-friendly packaging solutions and researchers are exploring the use of biodegradable materials like gelatin and chitosan for food packaging. Adding plant phytochemicals to gelatin and chitosan films has garnered significant interest because of their phenolic content and antioxidant properties since studies on biodegradable films reveal that the mechanical properties, biodegradability, and antimicrobial activities of these films can be enhanced by adding phytochemicals. In this review, we focus on how different phytochemicals influence the antioxidant and antimicrobial activities of gelatin and chitosan-based biodegradable films and discussion on the possibilities of phyto chemical addition in these films.
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Development and characterization of active gelatin-chitosan packaging incorporated with guava leaf extract for extending meat shelf life
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Researchers developed active food packaging films made from gelatin and chitosan incorporating natural antimicrobial agents, evaluating their barrier properties, mechanical strength, and ability to extend food shelf life. The bio-based packaging showed effective antimicrobial activity and reduced food spoilage compared to untreated films.
Incorporation of Chitosan-Stabilized Green Tea Pickering Nanoemulsion into Hybrid Semi-Refined Carrageenan-Gelatin Films: Stability, Antioxidant Activity, and Performance in Active Food Packaging
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Researchers developed sustainable hybrid films made from semi-refined carrageenan and gelatin enriched with chitosan-stabilized green tea nanoemulsions as an alternative to conventional plastic packaging. The films demonstrated good stability, antioxidant activity, and improved mechanical properties for active food packaging applications. The study offers a biodegradable approach to reducing reliance on plastic packaging materials in food preservation.
Improving Antimicrobial Properties of Biopolymer-Based Films in Food Packaging: Key Factors and Their Impact
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Researchers developed antimicrobial biodegradable food packaging films from starch, chitosan, and alginate modified with plant extracts, plasticizers, crosslinkers, and cellulose nanofibers, finding that chestnut extract and calcium chloride-crosslinked alginate films with specific plasticizers achieved the strongest broad-spectrum antimicrobial performance against bacteria and yeast while maintaining favorable mechanical and hydrophilic properties.
Chitosan with Natural Additives as a Potential Food Packaging
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Researchers reviewed the potential of chitosan, a natural polymer derived from chitin, as a sustainable alternative to conventional plastic food packaging. Chitosan-based materials combined with natural additives show promising antimicrobial and biocompatible properties while being biodegradable. The study suggests these materials could help reduce plastic packaging waste and the associated microplastic pollution from food industry sources.
Advancements in Chitosan–Anthocyanin Composite Films: Sustainable Food Preservation with Biodegradable Packaging
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This review covers recent progress in developing biodegradable food packaging made from chitosan (derived from shellfish) combined with anthocyanins (plant pigments), which can preserve food freshness while avoiding the microplastic contamination associated with traditional plastic packaging. These films have antibacterial and antioxidant properties and can even change color to indicate food spoilage, offering a promising alternative to single-use plastics.
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